Portman doubles Koolyanobbing resource

SPECIALIST iron ore producer Portman this morning announced a 101% increase in total recoverable resources, saying it marked a key step towards its 8 million tonne per annum production target.

The upgrade follows a major exploration program at the northern tenements of Mt Jackson and Windarling, located 80-100km kilometres north of Portman's existing Koolyanobbing operations, which it said

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